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//
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//  CustomAsyncImage.swift
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//  twogetskills
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//
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//  Created by Efrain Yanez Recanatini on 3/9/22.
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//
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import SwiftUI
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struct CustomAsyncImage<Placeholder: View>: View {
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    @StateObject private var loader: ImageLoader
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    private let placeholder: Placeholder
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    private let image: (UIImage) -> Image
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    init(
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        url: URL,
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        @ViewBuilder placeholder: () -> Placeholder,
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        @ViewBuilder image: @escaping (UIImage) -> Image = Image.init(uiImage:)
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    ) {
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        self.placeholder = placeholder()
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        self.image = image
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        _loader = StateObject(wrappedValue: ImageLoader(url: url, cache: Environment(\.imageCache).wrappedValue))
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    }
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    var body: some View {
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        content
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            .onAppear(perform: loader.load)
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    }
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    private var content: some View {
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        Group {
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            if loader.image != nil {
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                image(loader.image!)
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            } else {
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                placeholder
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            }
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        }
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    }
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}
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